Aluminum/Magnesium Hydroxide Stearate ●
TL;DR. It primarily acts as a rheology modifier, suspending agent, and texture stabilizer, especially in anhydrous products such as sticks, balms, sunscreens, and color cosmetics. It helps thicken oils, keep pigments evenly dispersed, and improve adhesion or payoff.
What does Aluminum/Magnesium Hydroxide Stearate do in a cosmetic formula?
It primarily acts as a rheology modifier, suspending agent, and texture stabilizer, especially in anhydrous products such as sticks, balms, sunscreens, and color cosmetics. It helps thicken oils, keep pigments evenly dispersed, and improve adhesion or payoff.
Is Aluminum/Magnesium Hydroxide Stearate clean?
From a clean beauty perspective, this ingredient is generally low-sensitizing and used for structure rather than as a biologically active ingredient. It can create some clean-standard friction because it is a metal-containing fatty-acid salt, so acceptance depends on the retailer or certifier policy and the exact application.
Is Aluminum/Magnesium Hydroxide Stearate sustainable?
This material combines mined mineral inputs with a fatty-acid component that is usually plant-derived, often from palm or coconut supply chains. It is not a persistent silicone or fluorinated material, but palm traceability and documentation are relevant sustainability checks.
Is Aluminum/Magnesium Hydroxide Stearate COSMOS-approved?
It can fit COSMOS-natural type formulas when made from permitted mineral and natural fatty-acid inputs using allowed processing, but it is not an organic-content contributor. Its Green Chemistry profile is mixed, with relatively simple chemistry and low use levels, balanced against mined inputs and variable renewable sourcing.
How does Aluminum/Magnesium Hydroxide Stearate work chemically?
The molecule is best understood as a mixed polyvalent metal salt of a saturated C18 fatty acid with it character, forming a waxy, water-insoluble structuring material rather than a water-soluble electrolyte. Typical use is often about 0.5 to 5% in oil-rich systems, with performance influenced by heat, shear, particle size, and oil polarity.
Last updated 2026-05-14